Liquid-cooling apparatus.



No. 770,190. PATENTED SEPT. 13, 1904.

A. SIEBERT.

LIQUID COOLING APPARATUS,

APPLICATION FILED DEC. 2, 1903.

I 2 SHEETS-SHEET 1;

NO MODEL.

PATENTED SEPT. 13, 1904.

SIEBERT. LIQUID COOLING APPARATUS.

APPLICATION FILED DEC. 2. 1903.

N0 MODEL.

2 SHEETS-SHEET 2.

UNITED STATES Patented September 13, 1904.

ALFRED SIEBERT, OF ST. LOUIS, MISSOURI.

LIQUID-COOLING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 770,190, dated September 13, 1904.

Application filed December 2, 1903. Serial No. 183,491. (No model.)

To all whom it may concern: 7

Be it known that I, ALFRED SIEBERT, a citizen of the United States, residing in the city of St. Louis, in the State of Missouri, have invented certain new and useful Improvements in Liquid-Cooling Apparatus, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification.

My invention relatesto that class of liquidcoolers commonly used for coolingliquid that has been heated and which itis necessary to reduce in temperature to render it fit for reuse.

Briefly stated, the invention consists in a system of what is commonly known as gradier work and in which I utilize two or more series of inclined shelves separated from each other and connected by side walls, the shelves being corrugated and of any desired width to receive the quantity of liquid delivered to the apparatus to flow over the plates for cooling action. The flow of liquid to be cooled is directed onto a portion of the shelves, where it is exposed to the cooling action of atmospheric air and at the same time onto other of the shelves, either in single or in multiple, where it is exposed to the cooling action of a blast or draft of air circulating between the shelves. In this construction the liquid after flowing over the shelves exposed to atmospheric air descends to the shelf exposed to draft or blast, while that first delivered onto the draft or blast exposed shelf passes therefrom to an atmospheric-exposed shelf, and the same courses are maintained throughout the apparatus to provide for alternate atmospheric air and blast exposures.

My invention consists in features of novelty hereinafter fully described, and pointed out in the claims. V

Figure I is a vertical section of my liquidcooling apparatus. Fig. II is a horizontal section taken on line II II, Fig. ,I. Fig. III is a vertical section illustrating a modified form of the apparatus. Fig. IV is a horizontal section taken on line IV 1V, Fig. III. Fig. V is a vertical section illustratinganother modification. Fig. VI is a vertical cross-section taken on line VI VI, Fig. III. Fig. VII

to the atmospheric air.

is a vertical cross-section taken on line VII VILFig. I.

1 designates the framework of my cooling apparatus, which may be of any desired dimensions as to height, width, or length and is of open nature throughout.

2 designates a liquid-delivery pipe through which the liquid to be cooled is conducted to the top of the apparatus. This pipe has connected to it two or more sets of jet-pipes 3 and 4, extending in longitudinal series and in parallel lines.

5 designates inclined side walls that extend in a zigzag line from top to bottom of the framework 1, the said side walls being so spaced apart vertically as to afford free circulation of atmospheric air between them.

6 and 6 are upper corrugated shelves positioned between the side walls 5 and exposed The liquid delivered from the delivery-pipe 2 through the jetpipes 3 descends onto the uppermost shelf 6 at its highest end, above which said jet-pipes are located, as seen in Fig. I.

7 7 and 7 are lower corrugated shelves positioned beneath the upper shelves 6 and 6 and located between the side walls 5. The uppermost lower shelf 7 receives liquid to be cooled from the jet-pipes 4, which are located directly above the highest end of said upper shelf. At the highest end of the second upper shelf 6 is a gutter 8, that extends upwardly in the form of a trap 9 to jut over the lowest end of the surmounting lower shelf 7 to furnish a passage-way between the lower end of said lower shelf and the upper end of said upper shelf, through which the liquid flows in a trapped condition to'said gutter 8 and from which it is evenly distributed onto the second upper shelf 6.

10 is a gutter into which the liquid descends from the topmost upper shelf 6 at its lowest end to be evenly distributed onto the second lower shelf 7. After traversing the upper shelf 6 the liquid passes from the lower end of said shelf into a gutter 13 and is evenly distributed therefrom onto a lower shelf 7 that leads downwardly to a receiving-pan 18, into which the cooled liquid is discharged.

6' is a supplemental shelf located above the such flow and alternation each body of liquid lower shelf 7 and onto the highest end of which the liquid flowing over the lower shelf 7 is discharged. The liquid falling onto said supplemental shelf passes thereover and'flows from the lower end of the shelf onto the shelf 7 b beneath it to be delivered into the receiving-pan 18.

For the purpose of enhancing the cooling action in my apparatus I locate a third cooling-shelf 20 above the lower shelf 7 and the supplemental shelf 6. To this cooling-shelf I conduct a supply of liquid from the deliverypipe 2 through the medium of the conveyingpipe 2, that leads to the highest end of said cooling-shelf. At the lower end of the cool- .ing-shelf is a gutter 21, that has connected to it a lead-pipe 22, through which water flowing over the cooling-shelf is constantly withdrawn from said gutter to any desirable point of discharge. By the introduction of this cooling-shelf and the constant flow of liquid thereover exposed to the atmosphere I gain a materially lower temperature beneath said shelf that adds to the efficiency with which the liquid-cooling action is carried out. This is due to the constant evaporation of the liquid flowing over the cooling-shelf that in taking place constantly lowers the temperature of the liquid, as is well known;

By the construction and arrangement of the shelves as described. I produce a conduit A, extending in a continuous manner between the shelves from the bottom to the top of the cooling apparatus, through which a draft or blast of air may pass to act with cooling effect upon the water flowing over the lower shelves 7, 7, 7, and 6". The desired effect may be obtained by a natural draft only; but I prefer to furnish a blast mechanically, and to this end I provide an air-box 15, having communication with the lower end of the conduit A and to which a blast of air is conducted through a conveying-pipe 16, that terminates in a nozzle 17, leading to the air-box.

From the foregoing description it will be seen that two independent deliveries of liquid to be cooled are made to the apparatus and that one delivery is first made onto the atmospherically-exposed upper shelf 6, while the other delivery is first made onto the draft or blast exposed lower shelf 7. From the upper shelf the liquid passes after flowing thereover to the second lower shelf 7' and is therefore in turn exposed to the cooling action of the draft or blast passing thereover in the conduit A, while the liquid originally delivered to the lower shelf 7 after passing ther-eover flows to the second upper shelf, thereby partaking of a flow exterior as distinguished from the interior flow of its first passage and exposing it to the atmospheric air. The course of the two flows of liquid are thus maintained through the apparatus, alternating from exterior to interior, and vice versa, and due to receives a continued cooling effect of both atmospheric air and air under draft or blast.

In Figs. III, IV, and VI, I have shown a modification of my apparatus, in which the arrangement of the shelves 6 6 and 7 7 is substantially the same as in the construction hereinbefore described. In this construction, however, the liquid passes from the lower end of the upper shelf 6* to a vertical duct 11, exposed at one side of the shelf, and descends through said duct to reach the upper shelf 6 After flowing over said shelf 6*, exposed to the atmospheric air, the liquid is discharged 1 into a receiving-pan 12. The liquid flowing from the lower shelf 7 discharges into the gutter 13 and flows in an evenly-distributed condition onto the lower shelf 7 b to flow thereover and descend therefrom into a receivingpan 14, separated from the'pan 12. By utilizing the two pans 12 and 14 I make it possible to cool two quantities of liquid to varying degrees of temperature, owing to one quantity being delivered direct from the shelf 6 to the pan 12, finally exposed only to atmospheric air, while the other quantity, delivered from the lower shelf 7 intothe pan 14, receives finally the direct cooling action of the inner draft or blast of air delivered into the conduitA.

In the modification shown in Fig. Vthe arrangement of the shelves 6 6 6 and 7 7, and 7 is similar to the arrangement in the construction shown in Fig. III, so that the final discharge from the lowermost lower shelf 7 is directly into the pan 18, while the lowerrnost upper shelf 6 leads directly to a position above the blast-nozzle and delivers the liquid finally exposed thereon to atmospheric air directly into the pan 18 to mingle with the liquid finally cooled by blast forced through the conduit A and in contact with the liquid flowing over said shelf 7 I claim as my invention 1 1. In a liquid-cooling apparatus, the combination with a skeleton framework, of a series of uppershelves secured to said framework so as to have their upper surfaces directly exposed to the atmosphere and adapted to carry a flow of liquid to be cooled by the atmosphere, and a series of lower shelves so disposed with relation to said upper shelves as to produce a continuous conduit between the upper shelves and the lower shelves, substantially as set forth.

2. In a liquid-cooling apparatus, the combination with a skeleton framework, of a series of upper shelves secured to said framework so as to have their upper surfaces directly exposed to the atmosphere, and a series of lower shelves so disposed with relation to said upper shelves as to produce a continuous conduit between the upper shelves and the lower shelves; said shelves being so arranged as to permit flow of liquid thereon from the upper shelves to the lower shelves and from the lower shelves to upper shelves throughout the series, substantially as set forth.

3. In a liquid-cooling apparatus, the combination of a series of upper shelves, and a series of lower shelves arranged to receive flow of liquid alternately one from the other, and a cooling-shelf located above the lowermost of said upper shelves, substantially as set forth.

4. In a liquid-cooling apparatus, the combination of a series of upper shelves, and a series of lower shelves spaced apart to form a current-conduit between them, and arranged to receive flows of liquid delivered alternately from one to the other of the upper shelves to lower shelves and lower shelves to upper shelves, a cooling-shelf located above the lowermost of said upper shelves, and means for conducting liquid to said cooling-shelf, substantially as set forth.

5. In a liquid-cooling apparatus, the combination of a series of shelves for receiving the liquid to be cooled and which flows thereover, a cooling-shelf surmounting the lowermost of said upper shelves and exposed to the atmosphere, and means for conducting a supply of liquid to said cooling-shelf, substantially as set forth.

ALFRED SIEBERT.

In presence of E. S. KNIGHT, M. P. SMITH. 

